class Arrow:
def __init__(self, path, closed = 0):
self.path = CreatePath()
self.head = Point(0,0)
if type(path) in (ListType, TupleType):
oldseg = None
for segment in path:
if len(segment) == 2:
if oldseg and oldseg[-2:] == segment:
self.head = Point(segment)
apply(self.path.AppendLine, segment)
else:
apply(self.path.AppendBezier, segment)
oldseg = segment
else:
self.path = path
if closed:
self.path.load_close()
def BoundingRect(self, pos, dir, width):
try:
angle = atan2(dir.y, dir.x)
except ValueError:
angle = 0
if width < 1.0:
width = 1.0
s = width * sin(angle)
c = width * cos(angle)
trafo = Trafo(c, s, -s, c, pos.x, pos.y)
return self.path.accurate_rect(trafo)
def Draw(self, device, rect = None):
if self.path.closed:
device.FillBezierPath(self.path, rect)
else:
device.DrawBezierPath(self.path, rect)
def Paths(self):
return (self.path,)
def IsFilled(self):
return self.path.closed
def Head(self):
return self.head
def SaveRepr(self):
path = map(lambda t: t[:-1], self.path.get_save())
return (path, self.path.closed)
def __hash__(self):
return hash(id(self.path))
def __cmp__(self, other):
if __debug__:
pdebug(None, 'Arrow.__cmp__, %s', other)
if isinstance(other, self.__class__):
return cmp(self.path, other.path)
return cmp(id(self), id(other))
class Arrow:
def __init__(self, path, closed = 0):
self.path = CreatePath()
if type(path) in (ListType, TupleType):
for segment in path:
if len(segment) == 2:
apply(self.path.AppendLine, segment)
else:
apply(self.path.AppendBezier, segment)
else:
self.path = path
if closed:
self.path.load_close()
def BoundingRect(self, pos, dir, width):
try:
angle = atan2(dir.y, dir.x)
except ValueError:
angle = 0
if width < 1.0:
width = 1.0
s = width * sin(angle)
c = width * cos(angle)
trafo = Trafo(c, s, -s, c, pos.x, pos.y)
return self.path.accurate_rect(trafo)
def Draw(self, device, rect = None):
if self.path.closed:
device.FillBezierPath(self.path, rect)
else:
device.DrawBezierPath(self.path, rect)
def Paths(self):
return (self.path,)
def IsFilled(self):
return self.path.closed
def SaveRepr(self):
path = map(lambda t: t[:-1], self.path.get_save())
return (path, self.path.closed)
def __hash__(self):
return hash(id(self.path))
def __cmp__(self, other):
if __debug__:
pdebug(None, 'Arrow.__cmp__, %s', other)
if isinstance(other, self.__class__):
return cmp(self.path, other.path)
return cmp(id(self), id(other))
